#include<iostream>
using namespace std;
const int N=1010;
int a[N][N];
int s[N][N]={0}; 

int main(){
	int n,m,q;
	cin>>n>>m>>q;
	for(int i=1;i<=n;i++)
	 for(int j=1;j<=m;j++)
	  cin>>a[i][j];
	  
	for(int i=1;i<=n;i++)
	 for(int j=1;j<=m;j++)
	   s[i][j]=s[i][j-1]+s[i-1][j]-s[i-1][j-1]+a[i][j];
	   
    
    while(q--){
    	int x1,x2,y1,y2;
	    cin>>x1>>y1>>x2>>y2;
	    cout<<s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1]<<endl
	    // don't forget -1 
	} 
	 
	 
	return 0;
}
